3121020010131 has 16 divisors (see below), whose sum is σ = 4164293669760. Its totient is φ = 2079213661440.

The previous prime is 3121020010099. The next prime is 3121020010151. The reversal of 3121020010131 is 1310100201213.

It is a happy number.

It is not a de Polignac number, because 3121020010131 - 2⁵ = 3121020010099 is a prime.

It is a super-2 number, since 2×3121020010131² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3121020010131.

It is not an unprimeable number, because it can be changed into a prime (3121020010151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27231376 + ... + 27345746.

It is an arithmetic number, because the mean of its divisors is an integer number (260268354360).

Almost surely, 2^{3121020010131} is an apocalyptic number.

3121020010131 is a deficient number, since it is larger than the sum of its proper divisors (1043273659629).

3121020010131 is a wasteful number, since it uses less digits than its factorization.

3121020010131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120706.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 3121020010131 its reverse (1310100201213), we get a palindrome (4431120211344).

The spelling of 3121020010131 in words is "three trillion, one hundred twenty-one billion, twenty million, ten thousand, one hundred thirty-one".